Vintage 7L spare tire Quickly gas tank

Vintage Quickly 7 Liter spare tire gas reserve tank in used condition. The round can is without dents, good outside and inside with rust / dirt. The rare rubber around the reserve tank is included and good. It is complete with rear bracket. The last two picture are not included but one pic shows the instruction. The other pic shows a different Quickly with hubcap clips mounted on a 15 inch VW Beetle wheel and so I think, this Quickly with the rear bracket, is not for the Volkswagen 15-inch wheels made in the 50ies to 60ies.