FYI: All 1967 Chevrolet full size cars (caprice, impala, bel air, biscayne) used a mirror with a bowtie cast in it. You can take that to the bank. Part numbers: LH 3901861, RH 3901862. RH Accessory number 987025. Those 3909197 mirrors are correct for 1967 camaros. Anyone who has studied Chevrolet parts has learned that the only thing that was consistent is inconsistency.
All cars in 1967 came with a LH mirror as standard equipment as per NHSTA regulations. 1965 and previous years did not have an outside rearview mirror as standard equipment. That is why you see so many accessory mirrors for 1965 and back for sale. Dealers kept a healthy stock of these on hand as many customers had one installed at the dealer if the car did not come with one. This also explains why you don't see any 1967 and up accessory LH mirrors for sale. By then all cars came with one and there was no longer a need to offer one as an accessory.
If you look at remote mirrors the last year for a bowtie on any remote mirror is 1966 and the bow tie was on the stem and not the head of the mirror. By the time the Camaro came around the remote mirror that is correct for the 1967 Camaro is also shared with the 67 Chevelle, Corvair, Nova and 66 Caprice. No bowties at all. Camaro came around at a transistional time for the Bow tie on the mirror. Who knows why it was eliminated. Too bad because I think it ads a lot of character to the mirror and of course pride in wearing the Bow tie.