Green’s Dictionary of Slang

gig-lamps n.

[SE gig-lamps, the two lights placed to either side of a gig or light carriage]

1. [mid-19C+] (also gig, gigs, jig-lamps, lamps) spectacles; thus a nickname for one who wears spectacles.

2. [late 19C–1900s] (US) jewellery; thus gig-lamped adj., wearing jewellery.

3. [20C+] a person wearing spectacles.

4. [1900s–30s] eyes.