Polysuplhide is just one toner formula. Use thiourea (or thiocarbamide) toner for varying tones. This toner can be controlled to give a wide range of tones between yellow and deep brown.(posted 8740 days ago)Toner formula aside, toning results also vary when you use different papers.
While it's a good idea to make the print a little darker if you intend to tone it, for a really antique look, Hicks and Schultz, in their book on monochrome, suggest to keep the print a little lighter and harder before toning. You may have to experiment a little to get the look that is most pleasing to you.
The bleach-and-redevelopment sepia toner is actually a solution of sodium sulphide, the bleach is ferri plus potassium bromide. If you are interested, I will look up quantities in one of my books.
Interesting effects will also result from split toning in selenium and sepia. Selenium will tone the dark areas first, while sepia eats itself down the tonal scale from the highlight end.