(2.5" by 1.5", or 3 hole/5 hole.). use the 'add to basket' not the 'buy it now' link. Parts are generally in good used condition.
Three Meccano Double Angle Strips, part 48a, available in various finishes.
Meccano #M5 Perforated Strip 2.5" Mechanised Army GC 1939-41
Meccano 25 Hole Strip Plates Part #197 Red 12.5" - Set of 3 MMI
Meccano 25 Hole Strip Plates Part #197 Red 12.5" - Mixed Condition Builders Lot
4 x Meccano Curved Slotted Strip, Zinc, Part No.215, Stamped MMIE
Fifty used Meccano Nickel Angle Brackets, part 12, bulk pack