The reference works on polish troops are the books by Bronislaw Gembarzewski. Firts one published pre-WW1 (Wojsko Polskie 1807-1814) and reprinted in Poland in recent years – but with few illustrations (although beautiful) and also "Zolnierz Polski" published in the 1960s from his work recovered after WW2.
Aside from these hard to find volumes (but essential for a full view of the Polish armies), a series was started in the late 1980s and is still under publication.
The first volume is out of print but dealt with the cavalry (except the lancers):
Morawski/Wielecki: Wojsko Ksiestwa Warszawskiego – Kawaleria
publisher: Bellona
It's all color plates with text in polish, summary in french and english and captions also in french and english
It can still be had as second-hand via sites like abebooks.com
On page 67 there is a plate devoted to trumpeters
1st: white kinski type coat (short surtout) with red collar, pointed red cuffs, turnbacks red
4th: same as 1st but with turnbacks edged red – edge being fairly wide
both 1st and 4th have a hussar-style coatee visible under the coat red with hussar yellow and green braiding also hedging the bottom of the coatee
5th: same as 4th but all that is red is pale orange.
cavalry trousers for all green with double band on the side red for 1st and 4th, pale orange for 5th (presulbaly)
all busbys are white with yellow cords
1st: fluffy "overtuned" plume (hanging down) 50/50 red and green with red above
4th as 1st but standard plume
5th: same as 4th but with red replaced by pale ornage
sheepskin saddlecloth with lion's teeth edging in red for 1st and 4th, pale orange for 5th
All have yellow epaulettes
This is of course parade dress
Hope this helps
finally "deutscheuniformen" is actually plates from the Lienhart & Humbert reference book published in the late 1890s and covering all of french troops up to 2nd Empire -including allied troops of teh napoleonic period. It is not without major mistakes.
YM
returns to Flintloque to paint an Ogre.
