The sales books document the key role played by Feurich in the success story of both the Welte-Mignon and the Philipps DUCA.

Julius Feurich was also a close friend of Hugo Popper. According to the information in the sales books, it is very likely that Feurich delivered the wing pegs for the later recording wings of Welte-Mignon to Hugo Popper in Leipzig. Feurich delivered a total of 12 wing pegs to Hugo Popper. The first wing peg with ser no 17385 on 12 October 1904, followed by ser no 17383 and 17384 on 2 November 1904, ser no 17386 on 30 December 1904, ser no 17391 and 17393 on 14 December 1904. February 1905, ser no 17394 on 7 March 1905, ser no 17389 and 17390 on 23 March 1905, ser no 17387, 17388, 17392 on 2 May 1905. Not a single wing rest was delivered to M. Welte & Soehne in Freiburg. We list all serial numbers in detail here in order to locate one of these wings somewhere in the world. It may well be that these instruments still exist - but possibly without the recording technology?

Here are further details of important deliveries from Feurich, some of which document technical innovation steps:

1904, September 7th, the first "Klavierraste 132" is delivered to M. Welte & Söhne in Freiburg*
*but according to Feurich documentation this is the 7th delivery to Welte - further research is necessary in this point

1904, October 12th, the first wing rest is delivered to Hugo Popper in Leipzig
* further research is necessary in this point, as Feurich did not number the deliveries to Popper & Co

1905, July 12, the last "Artist" (Popper trademark for "Mignon") of 21 delivered Artist is delivered to M. Welte & Söhne in Freiburg* *
further research is necessary in this point

1905, 29 July is the start of deliveries of the ""Mignon"" detent with tuning key" to M. Welte & Söhne in Freiburg

1907, November 5th, the first so-called "American rest with tuning keyboard" (ser no 20699) for a US version of the cabinet is delivered to M. Welte & Söhne in Freiburg

1907, 7 November, the first Feurich "Mignon Rast with full/large keyboard" (ser no 20717) is delivered to M. Welte & Söhne in Freiburg - the version for the high piano variant with Welte technology above the ratchet

1908, 25 April, the first Feurich "Stella" (ser no 21042) piano is delivered to Hugo Popper in Leipzig

1908, August 6th, the first DUCA (ser no 22737) "Pianino with Sapelimahagony with electric double lights" is delivered to J.D. Philipps in Frankfurt

1912, 5 October, the first Feurich grand piano (ser no 27557) is delivered "for experimental purposes" to M. Welte & Söhne in Freiburg - the start of the availability of Welte-Mignon built into grand pianos

1922, 29 May, the first Feurich DUCARTIST Pianino (ser no 36171) is delivered to J.D. Philipps in Frankfurt

1923, October 8, the first Feurich piano (ser no 38203) "combined" (with foot operation) is delivered to M. Welte & Söhne in Freiburg

More details shortly...