page 2: Keilwerth brass serial numbers 5.000 - 9.999

page 3: Keilwerth brass serial numbers 10.000 - 14.999

page 4: Keilwerth brass serial numbers 15.000 - 335.308

The general information about the history of Keilwerth brass instruments is on a separate page. 

There are serial number lists of Keilwerth saxophones around but there was no such thing for their brass instruments. Below you'll find a list of instruments and numbers that were traded through Ebay, Quoka and such, with information added from sites like Trompetenforum.de (where Brigantiumjazz triggered me to make this list), Trumpetherald.com, Trumpetmaster.com, Horn-u-copia and the Yorkmaster public pictures at Yahoo. There seems to be no relation whatsoever between the serial numbers of Keilwerth saxophones and their brass instrument serial numbers.

This serial number list of brass instruments now has some 950 entries, that's maybe 3 percent of Keilwerth brass production. It shows a fairly continuous serie up to number 30658, with a few examples of every 1000. Then, after a few incidental Tonekings, new models show up, like the 2000 and 3000 series and the Student. The jump, first to the 100.xxx range, with mostly 'Student' instruments and then to the 200.xxx range with the 'De Luxe 2000' and 'Super de Luxe 2000' models could originate in other makers providing the instruments, as stated above. Here the gaps between the numbers are much larger. That's probably because they are part of a serial number list that includes the makers 'own' instruments as well as other stencils. And maybe also because these are newer and still with their original owners, so they down't show up on Ebay and other sites? Then there are incidental examples of the Modell AT and SX of which we don't know a number. La Sete and Hamilton instruments are integrated in this list, although they're not all made by Keilwerth, the La Sete instruments in the 15x.xxx range obviously come from Elkhart, Indiana, others come from Wohlrab.

Here's a graph that illustrates the development of Keilwerth serial numbers in the list below. Steady going from zero till 30.000 and then a few high scores.

instruments on list

There also are Keilwerth brass instruments without a serial number but with the valves numbered. The trumpets without a serial number mostly have an additional bow in the main tuning slide, a feature that's seen more often on pre-war trumpets. Therefore I think these are the first Keilwerth brass instruments, before the serial numbers started. Trombones also seem to be missing a serial number quite often. There are also serials in the lower range that begin with a zero. These seem to be a separate line (most Toneking model) where (most of the) the De Luxe models are without the zero.

For additions and corrections: please contact me. Information about the year your instrument was acquired is very helpful. Thanks to everyone who has contributed to this list so far!

Julius Keilwerth serial numbers for brass instruments (trumpet, trombone, cornet, flugelhorn)
serial number	type, model	year (as stated by owner or seller)	remarks, engravings (MbKG= Made by Keilwerth Germany)	instrument (other than trumpet)	thumbnail picture	engravings picture
2507	Toneking de Luxe		MbKG
2508	Toneking de Luxe		silver
2509	Toneking de Luxe		MbKG
2525	Toneking de Luxe		MbKG
2556	Toneking de Luxe		MbKG, valve numbers 1,2,3
2566	Toneking de Luxe		valve numbers 1,2,3
2585					xx
2599	Toneking de Luxe	1954
2609	Toneking de Luxe			Trombone
2610	Toneking		MbKG
2621	Super de Luxe			Trombone
2657	Super de Luxe		tricolor, raw brass
2680	Toneking de Luxe		MbKG valve numbers 1,2,3		xx
2687	Toneking		MbKG, valve numbers 76,77,78
2697	Toneking de Luxe
2697	Super de Luxe			Trombone
2721	Toneking de Luxe			Trombone
2749	Toneking		MbKG valve numbers 1,2,3		xx
2753	Toneking	from DK	MbKG valve numbers 1,2,3
2760	Toneking de Luxe		MbKG	Trombone
2814	Toneking	60 - 65 years old in 2014	C trumpet or missing a part?
2814	Toneking de Luxe	1965-1970
2818	Toneking de Luxe
2823	Toneking de Luxe		MbKG	Trombone
2838	Toneking de Luxe
2856	Toneking		MbKG, valve numbers 1,2,3,
2858	Toneking		MbKG
2867	Toneking		MbKG, valve numbers 1,2,3, Kasper Wicky Genève
2869	Toneking		MbKG valvenumbers 1,2,3		x
2877	Toneking de Luxe		MbKG valve numbers 1,2,3
2875	Toneking de Luxe		MbKG
2892	Toneking			Trombone
2896	Toneking de Luxe	around 1960
2913	Toneking de Luxe		MbKG, valve numbers 1,2,3
2914	Toneking de Luxe		MbKG, valve numbers 1,2,3
2919	Toneking de Luxe	'1950-1965'
2932	Toneking de Luxe			Trombone
2968	Toneking de Luxe		MbKG, valve numbers 1,2,3	C-trumpet
2980	Toneking de Luxe		MbKG, valve numbers 1,2,3
3000	Toneking		MbKG
3xx3	Toneking de Luxe		MbKG	Trombone
3006	Toneking de Luxe	50's	MbKG valve numbers 1,2,3
3035	Toneking de Luxe?		valve numbers 61,62,63	trumpet
3035	Toneking		MbKG	Trombone
3072	Toneking de Luxe		MbKG, sandblasted
3092	Toneking de Luxe		MbKG valve numbers 1,2,3, valves numbered 3092
3093?	Toneking de Luxe		MbKG
3135			slide MbKG, combined with a King 3B bell nr 673463	Trombone
3137	Super de Luxe
3179	Toneking			Trombone
3182	Toneking		MbKG
3198	Toneking
3230	Toneking de Luxe		MbKG valve numbers 1,2,3	Cornet
3248	Toneking de Luxe			Trombone
3249	Toneking de Luxe	40-50 years old in 2013	MbKG	Trombone
3263	Toneking		MbKG
3265	Toneking de Luxe
3278	Toneking de Luxe	'ca 60's/70's'	MbKG
3309	Toneking de Luxe		MbKG
3378	Toneking			trombone
34xx	Super de Luxe
3402	Toneking de Luxe	for sale in 2019 from Vienna	MbKG, valve numbers 1,2,3 Musik Goll, Wien
3403	Toneking de Luxe		MbKG, valve numbers 1,2,3
3427	Super de Luxe		MbKG
3433	Super de Luxe		MbKG		xx
3435	Super de Luxe		MbKG
3455	Toneking	bought in 1959
3460	Super de Luxe			Trombone
3466	Toneking de Luxe		Made by Keilwerth	Trombone
3502	Toneking de Luxe
3514	Toneking de Luxe		MbKG valve numbers 1, 2,3,
3545	Toneking	'1934'	MbKG valve numbers 1, 2,3,
3552	Toneking de Luxe		MbKG	Trombone
3557	Toneking de Luxe		MbKG valve numbers 1, 2,3,		xx
3619	Super de Luxe	50 years old in 2014		Trombone
3620	Toneking	1951-1953	MbKG
3657	Super de Luxe		MbKG
3659	Toneking		MbKG valve numbers 1,2,3	Cornet
3622	Toneking		MbKG valve numbers 1,2,3
3663	Toneking de Luxe		MbKG black and gold
3669	Toneking		MbKG	Cornet
3669	Toneking		MbKG
3673	Toneking			Cornet
3687	Toneking		MbKG valve numbers 73,74,75
3705	Toneking
3720	Toneking		MbKG, valve numbers 1,2,3
3731	Toneking de luxe		MbKG	Trombone
3745	Toneking	'70's'	MbKG
3746	Toneking de Luxe		MbKG valve numbers 1,2,3
3776	Toneking de Luxe		MbKG		xx
3801	Toneking de Luxe		MbKG
3823	Toneking Super de Luxe			Valve Trombone
3844	Toneking		MbKG	Slide Trombone
3844	Toneking de Luxe		MbKG, valve numbers 1,2,3	Valve Trombone
3850	Toneking de Luxe		MbKG, valve numbers 1,2,3	Cornet
3876	Toneking de Luxe	more than 50 years old in 2013	MbKG, valve numbers 1,2,3	Cornet
3901	Toneking		MbKG, valve numbers 70, 71, 72
3912	Toneking
3921	Toneking		MbKG valvenumbers 1,2,3
3941	Toneking de Luxe
3980	Toneking
3995	Toneking de Luxe		MbKG valvenumbers 1,2,3
4004	Toneking		MbKG valve numbers 64, 65, 66	Cornet
4008	Toneking		MbKG
4014	Toneking	bought in 1956 in Stuttgart	MbKG, valve numbers 94,95,96	Cornet
4029	Toneking de Luxe			Trombone
4047	nameless bell		MbKG, valve numbers 28,29,30	Valve Trombone
4050	Toneking de Luxe			Trombone
4066	Toneking de Luxe	late 50's	MbKG, valve numbers 85,86,87	Trombone
408x	Toneking	'probably 30-40's "	MbKG
4092	Toneking de Luxe		MbKG valve numbers 1,2,3,
4124	Toneking
4171	Toneking
4188	Toneking
4200	Super de Luxe
4271	Toneking
4291	Toneking de Luxe		MbKG, valve numbers 1,2,3,	Cornet
4301	Toneking de Luxe		MbKG	Trombone
4307	Toneking		MbKG
43xx	Super de Luxe		tricolor
4320	Toneking		MbKG	Trombone
4325	Toneking		MbKG
4344			'Bb en C'
4350	Super de Luxe		tricolor
4355	Toneking			Cornet
4445	Toneking		MbKG, valve numbers 1,2,3,
4451	Toneking		MbKG
4477	Toneking	1975
4520	Toneking		MbKG	Trombone
4529	Toneking		MbKG	Trombone
4535	Toneking de Luxe	sixties or seventies
4546	Toneking			C Trumpet
4570	Super de Luxe
4585	Toneking de Luxe		MbKG
4573	Toneking de Luxe	bought in 1961
4609	Toneking		MbKG
4628	Toneking de Luxe	ca 1955
4699	Toneking de Luxe		MbKG
4713	Toneking de Luxe
4751	Toneking		MbKG	Trombone
4755	Toneking de Luxe		MbKG valve numbers 1,2,3
4803	Toneking de Luxe
4868?	Toneking		MbKG Yamaha weight	Trombone
4957	?	ca 60 years in 2019		Cornet
4972	Toneking		MbKG	Trombone

page 2: Keilwerth brass serial numbers 5.000 - 9.999

page 4: Keilwerth brass serial numbers 10.000 - 14.999

page 4: Keilwerth brass serial numbers 15.000 -335.308

For some instrument there is a more or less reliable date of purchase know. Based on these dates the graph below is made. Note that an instrument bought at a certain time may have waited in the shop for a considerable amount of time, sometimes several years. So drawing a line between the lower dots gives an approximation of the timeline of the production of Keilwerth brass, that is the first 30.000 Keilwerth instruments, which I believe is their own production.

year

serial number