Unclear if this is an ad for the rental of a funeral car, or the purchase of affordably priced coffins, or both. I’m not spotting a motor or a place one would be hidden, so I guess this must have been a horse drawn vehicle that R.F. Dorr would use when you hired their services. I would think that by the aughts, these would be motorized, putting this ad in the 1800’s. But maybe tradition held out, and horses were used in the 10’s or 20’s in funeral duty? I could see that, since it’s more stately and cars were noisy and undignified. In which case this could be early 1900’s.