Alternatives to Subway Ceramics 3x6 tile?

[1918ColonialRevival]

Does anyone know if there's anyone else besides Subway Ceramics who makes a 3x6 subway tile with a flat surface? All of the other options seem to be slightly curved downward along the edges. Subway Ceramics' stuff is nice, but I don't have $7k in the budget just for wall tile.

I'd love to find an old building I could salvage some original tile from, but so far I haven't been that lucky. It seems that bathrooms are the most common areas to be renovated in accordance with latest trends next to kitchens. Most of the bathrooms in buildings I've salvaged from have had tile from the '60s or later.

[mjt]

Would this work?

[1918ColonialRevival]

It looks similar, but I didn't see any info on pricing. I'd probably have to contact them for a quote.

[Ireland House]

Try American Restoration Tile. My 1907 bathroom tile was an in stock standard item. The curve on the top is caused by the glaze. (I grew up in a ceramic shop.) You probably have either an un-glazed tile or a less common "cut" tile that was cut after the glazing and firing process. My tiles are un-glazed porcelain.