[swoopNZ]

I had a 39 standard in 1965 but can't remember what it had.
The 39 deluxe glove box reference book shows the dry type on pages 13 and 29.
It does say however on page 14 of the manual that with excessively dusty operations an oil bath type air cleaner should be used.
The 39 Mercury owner's manual says much the same thing.