Air filter pan decals?

so i have a 4.3 v6 in my truck and the air filter pan is circle just like the old cars in 60s and 70s and so forth. well back in the day they used to put the size of engine, no. of cylinders, and etc on the top of the air filter pan. i was wondering if anyone new on where i could find to order or buy them at. thanks for your help.