For Prussian 1. GRzF thru 5.GRzF, there was an order of precedence for shoulder boards and straps with no numbers or cyphers (white, red, yellow and blue). For M-10 officer Feldrocks, this also translated to the base tab color on the collar. 1.GRzF thru 4.GRzF would use the same muted metallic Doppelitzen on the tabs and utilized Swedish cuffs. The 5.GRzF has a white base color tab but a single "Old Prussian" style pointed litzen bar and a Brandenburg cuff. The Prussian Guard Grenadier units, GGR1 thru GGR5, utilized this same order of precedence for shoulder boards (white, red, yellow and blue), which also translated to the base tab color for officer M-10 Feldrocks. GGR1 thru GGR4 would use the same muted metallic Doppellitzen, wore specific cyphers on the shoulder boards and all would use the Brandenburg cuff. The GGR5 has a white base collar tab but a single "Old Prussian" style pointed litzen bar and no cyphers on the boards. The Guard Fusilier Regiment used a yellow base tab for the officer M-10 Feldrock, with muted metallic Doppellitzen and Swedish cuffs. All of the units above used brass buttons except 1.GRzF, 5.GRzF and G Fus.R, which used silver buttons.