The peroxide is the best way to start. It may take several trys. It is the simplest and involves the least amount of chemicals. do not use any hot water, it will set the stain if it is blood. Always use cold with blood. Good luck and looking forward to seeing this beauty! :thumbup:
peace

Exactly, we got blood out of carpet, couldn't even tell

I've been successful with spray Oxiclean but not on stains that old. Blood stains will foam when the product is applied.

I use Orvus equine soap, it works great on fine material and on quilts, it even takes out the rust stain.

http://www.carbona.com/stain-devils/

Carbona stain products are specifically formulated for different kinds of stains, and I've tried nearly all of them. The Blood and Milk one works every time!

I can't wait to see the quilt! Sorry, no advise about the spot. I just received one that my grandmother made in 1930 also.

Oxyclean might work if U use a diluted amount

It may not actually be blood. Quilt historians refer to it as age spots. Try Grandma's spot remover. Not sure I would use hydrogen peroxide on an antique quilt. Not sure I would even try anything else besides Grandma's spot remover. Contact a quilt historian. You can google it or try going to AQS website and find a quilt appraiser. Although you're not actually having it appraised, they are usually very knowledgeable on preservation also. You might also contact a local quilt guild. There are usually very knowledgeable people there also.

I just remembered something I read a long time ago, Make a paste of meat tenderizer and apply to spot, keep damp.

I got blood out of a carpet that had been there 5 years using meat tenderizer.damp with a sponge sprinkle it on and let it set for a little while and wipe it up and if need be do it over again

My suggestion would be, first of all, before you try stronger chemicals, to saturate the stained areas with pure glycerine (available in drugstores). Let sit over night and wash with a gentle soap, like Ivory liquid. It may take several treatments, but the glycerine will not affect the fabric negatively.

Hydrogen Peroxide??