This has a concave front element, also rare earth is used, but it has only mono-coating and no floating mechanism.
The first version was introduced 1971, list price was 32,000 Yen and my monthly pay was 47,500 Yen at that time.
(One US dollar was approx. 350 Yen @1971, so 32,000 Yen was ~$91.) $200 @2000 from Fujiya Camera Tokyo

This lens is type II because its max diameter is 67mm, but it weighs 508g which is quite heavier than Canon museum's
documentation(saying 420g), type II (67x60mm), 8 grp / 9 elm, MFD = 0.3m, 8 iris blades