The Matchbox TP-20 Diesel Shunter and Side Tipper was released in 1979 in two variations; one has a black dumper and one has a red dumper as you see in the example I landed in an eBay auction. In 1991, this Two Pack was re-released as TP-125 with models cast in China (with a red dumper).

eBay | 1979 | TP-20 | Diesel Shunter and Side Tipper

The Matchbox #24 Diesel Shunter was first released in 1978 and was produced in about 6 different variations. In my collection, I have a loose example identical to the one in this Two-Pack as well as a nice version of the metallic green variation.

24 | Diesel Shunter | yellow with red and white D 1496-RF labels, red metal base with red plastic base insert | England | black plastic 8-spoked wheels

The Matchbox #720 Side Tipper was first released in 1977 and was produced in about 5 different variations. In addition to the Two Packs, it was included in the G-2 Railway Set from 1979 to 1982 and in the Live ‘N’ Learn Matchbox Pre-School set from 1989 to 1992.

#720 | Flat Car Side Tipper | yellow with red plastic tipper, black plastic base | England | black plastic 8-spoked wheels

The back of the card has beautifully rendered line art illustrations of some of the other models available in the Matchbox Two Packs.

Other Matchbox Two Packs in my collection include the TP-1 Mercedes Truck and Trailer, the TP-14 Military Tanker and Radar Truck, the TP-16 Military Dump Truck and Bulldozer, the TP-19 Dodge Cattle Truck and Trailer, the TP-23 Long Haul Covered Container Truck, and the TP-25 Long Haul Pipe Truck.