I'm still searching but have yet to find a supplier of the old style handlebar mounted water bottle holder(s) that used to be seen on older road bikes. Does anyone know of a source? Thx, PG.

I bought one at the Trek store in Madison Wi that came with a bottle. It was a Trek part if I remember right. Check with your local Trek dealer.

If you're just going for the look or function then Minoura makes two products that can be used to mount a cage to a handlebar:
https://www.bikemannetwork.com/biking/p/ACH2OSYS/WC3002
https://www.bikemannetwork.com/biking/p/ACH2OSYS/WC3101

I've used both and they work well. The second one may be a tight fit for some stems but it holds the bottle a little lower. Use chrome steel cages to complete the period look.

I think a77impala is thinking of an adapter that attaches to your bars and then you can attach any cage to that adapter. Yellow Jersey in Madison sells them for about $15.

TA made a version in the 70s, they go for $30-$50 on ebay. I see one every few weeks.

The older ones without the bottles go for about $70, with aluminum bottles, about $150. They are on ebay about every 4-6 weeks. I would have had some cheaper but the moronic seller forgot to take me off the bidding block list (I was on because he didn't ship to the US, he said he would take me off but never did).

There are some repros on ebay right now from a seller who sells through his website too. He may have a source if you want to ask.

https://cgi.ebay.com/ws/eBayISAPI.dll...MEWA:IT&ih=011

https://www.sdbicyclegarage.com/index.html

Thanks folks for all your help. The Minoura ones are what I'm looking for. PG.

Though admittedly not authentic, the Minouras capture the overall period-correct look and feel of traditional handlebar-mounted water bottles pretty well on my 48-year old bike.

I use one of the minoura units and I like it a lot. You can adjust it to a nice level potion that works will for a cup of coffee on the way to work.