I am certain a small number of deep skeg 20H's came from the factory as new.

Some 20Hs produced early in the run may have had sand cast housings, but by January 1 1954 all new Quickies were diecast.

20H's were a 1954 model year motor, but not all were sold the first year. Some lingered on at distributor's warehouses and dealer showrooms for years and people bought new unused 20H's that had been made in 1953/54 as 1954 model year motors quite a while after 1954.