No, I do not believe so. I think the IH hubcaps were available options either in the late 60's or 70's, but not early or mid 60's. Solid (non-IH) chrome hubcaps were on the 123's (1967), but not the IH ones. The attached address shows the 70/100 when it first came out. Read over the options and chrome hubcaps are not mentioned as options at that time. I'm not 100% for sure.
https://books.google.com/books?id=mi...0cadet&f=false
Cub Cadet 123