Marks 
Slips of extra large size — six^>i mm : 
a) white crown-glass witli ground edges, per 100 . . 
unground edges, per KK) . 
c) best white phite-glass witli ground edges, per W 
Hollow Slips: 
a) small pattern, 5r)X">2 nnn, of l)est make and finish, ground 
edges, each 
b) extra large, 87 X-^'^ best make and finish, edges 
ground and polished, 5 mm thick, each 
Slips with cemented glass rings, for moist chambers 1 
or 2 mm deep, each 
0.80 
Covers square: 
size : 24 21 18 15 12 mm □ 
per 100 Mk.: 470 3.60 2.70 1.80 1.-. 
