In which Catalog do I find this Coin? [resuelto]

Hi
I have 2 Coins which F...

https://en.numista.com/catalogue/pieces31123.html
https://en.numista.com/catalogue/pieces27516.html

F# 56.3
F# 642.1

What is that for a Catalog? I know only KM# and Y# ?

Gietl & Battenberg Publisher : Die deutschen Notmünzen by Walter Funck Münzkatalog 1916-1921 / The German Notgeld coins by Walter Funck catalog 1916-21 --- Language : German --- Content : All official expenditure and its variants of countries, counties, cities and towns 8 edition 2012 704 pages, 14.8 x 21 cm, numerous b / w illustrations, hardcover ISBN: 9783866465480 Edited and expanded by Wolfgang Peltzer and Ralf Müller completely new With the outbreak of the First World War was accompanied by a shortage of small change coins - due to the fact that these are often of high quality materials (gold, silver, etc) were that they wanted to hoard for themselves. In this catalog are all during the years 1916 - 1921 listed fully approved Coins of the German cities, municipalities, counties, etc., including the sample coins, offer samples, discounts and now also variants. In the 8th Edition of the Standard Catalog has been completely revised and expanded. With current market prices.

A lot of information can be found here:
http://www.joelscoins.com/notgeld/notgeldger1.htm
http://www.ma-shops.de/krogoll/cat.php5?catid=10921&lang=en

Thx a lot.