toned Kallitype

This Kallitype was too dark (about 30% overexposed)

steps to rescue

1. bleached 1+100 1 min and fixed again to reduce density, the print was still too dark and soft
2. bleached again 1+50 1 min and toned with thiourea (MT3 with a just small amount of alkali - 50+15+1000ml) to lighten the highlights and upper midtones
3. MT7 Iron Blue 5+5+5+15+5+1000ml 90 secs - resulting hue yellow and green
4. weak solution of ammonia to achieve a cooler tone