That bathroom belongs in a museum.

I get it...some one will tell you to keep this awesome history, yet you have to live it. Good luck with your reno; I will be following to see your changes!

That looks fantastic. If there are no problems like leaks I'd keep it. I tore out a 1950s pink bathroom a while back that had some serious leaks and mismatched tile, but I sort of wish I could have kept it.

In seriousness, you could salvage those fixtures pretty easily - they are awesome and these old colored bathrooms seem to be coming back into style, so someone would probably love to take them off your hands.

Honor the house by making the new bathrooms 30's style as well. White 30's bathrooms are lovely - our Victorian has a white 30's bathroom with pretty decorative tile and an Art Deco tub, so very old but not original to the house. We can't keep it because it's literally falling apart and it's arranged badly, but we will sell/donate the tub to salvage because I know someone else will love it (I'm mad that I can't keep it - it just won't fit in the new layout).

If the rest of the house is mostly in its original state/layout, you'll achieve the most timeless bathrooms by making it feel like it belongs to the era of the house. For example, I watched an episode of Back Flip with Brett Waterman and he was restoring this epic 70s house in the desert. It had a mid-2000's travertine bathroom that was so incongruous it wasn't even funny. So he gutted it and put in a 70's bathroom, and oh my, it was SO much better and miraculously, felt way less dated than the contemporary bathroom simply because it meshed with the rest of the house.

TooToo cool.

Is that real??? Amazing that everything is in such good condition (or at least that's how it looks in the pictures). There must be a place you could sell those fixtures but I don't know where... As for honoring the house - what does the rest of your house look like? Is it green and purple as well ;)? Maybe you can find inspiration from the rest of your house

Of all the rooms in a house, the bathroom needs to be functional and something you don’t hate every time you walk into it. So, sell your old fixtures on eBay or Craigslist, or donate to Habitat...but get an architect or designer to help you design a functional space. You can always save a tile or two and frame them to remind you of the originals. (I did that with a piece of my old kitchen countertop (Tweetybird yellow with orange and brown boomerangs).

That metal framed window is also awesome.......although I bet it isn't very well insulated. They are really back in fashion now and you can get modern updates with insulated glass. In the UK they are very popular. I love the look.

https://www.crittall-windows.com/

I realize it's vintage, but I don't care for it. I had a 50s pink and green bathroom in an apartment, so maybe it's just giving me flashbacks. If you home is Spanish style, I would go with a southwest theme. The arches are perfect. Some Mexican style tiles for accents.

It's very nicely preserved - but it's not functional in 2018. I would replace it. People who tell you to keep it, don't have to live with it.

Try to keep the arches. They are cool. You could use the same flooring tiles only in black and white which would be a bit more timeless. I also really like the zigzag tile in the tub. Using that element would also be a nice nod to the original.

This looks like a SoCal Spanish Colonial to me. There are several architectural salvage companies who will take those fixtures off your hands in a a heartbeat and would probably come remove them for you. Try Pasadena Architectural Salvage for a start.

get yourself a sledge hammer and go to town.

Maybe you'll find ispriration here: https://retrorenovation.com/? Or buyers ;)

What have you done so far?