Air Mail

Notable parts

• 1 part comes in a colour no other set has for that mould: Brick Wedged, Sloped 4 x 4 Triple, Stud Notches (Yellow).
• 3 parts appear in only a few other sets: Slope 45° 4 x 4 Double with Locking Hinge (Yellow) — also in 4778 Airline Promotional Set; Window 1 x 4 x 2 Plane, Hollow Studs, Single Hole Top and Bottom for Glass (Yellow) ×2 — also in 6552 Rocky River Retreat, 6541 Intercoastal Seaport, 6697 Rescue-I Helicopter, 60329 School Day; Tail Shuttle (Yellow) — also in 60144 Race Plane, 60179 Ambulance Helicopter, 7044 Rescue Chopper, 3178 Seaplane.
• 1 mould first came out in 2008, including in this set: Glass for Window 1 x 2 x 2 Flat ×4.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.