These plates were used on heavy trucks - mostly construction dump trucks - in the 60s and 70s.
They are no longer issued.
1960-1978100 (?) - 20000 (?)
Annual issues stopped in 1962 and were replaced by plates with tab slots.
1978"C" stickerLee Madigan
The tab slots went away sometime in the 70's.
1980COMMERCIAL with C sticker
I saw and photographed this plate in use on a heavy dump truck - is this an error or a revival of CONSTRUCTOR plates ?