If the OP seeks period and in black, Kirtland, Cannondale or maybe Jandd would be ideal. Its much about character. I like the older for nostalgia and cycletouring with a vintage bike.
They also weigh far less vs. modern heavy rubber type. If concerned about water, simply pack contents in plastic baggies, x gal. garbage bag. Going a bit further, drysacks as liners are the way to go.
Fun that Frostline was mentioned. I have only one side pannier in orange. Long to find a match.
Honorable mention for vintage is the English made Karrimor. Have a full front and rear pannier setup for our tandem.
Last edited by crank_addict; 11-21-16 at 04:53 PM.