In Benelux Revenues [2nd ed.], John Barefoot lists a Differdange 3F Hôtel de Ville revenue of the design shown above along with 1F and 2F denominations, but the color of the 3F is listed as brown. Here a distinctly blue Differdange Hôtel de Ville revenue has been surcharged to 2 francs.
Barefoot also lists this 2F Wiltz Le Château revenue along with 1F and 2F denominations and a 3F typewriter surcharged “+12.” Here is the 2F surcharged to 10[F] with a rubber stamp.
Please contact me through the comment function of this blog or by email to arsdorf@gmail.com if you have unlisted Luxembourg communal revenues in your collections. I’d be delighted to post them here for all to enjoy.