I have an assortment of unexposed dry plates and would welcome some info on them please - such as what to rate them as. Kodak Ortho Rapid Eisenberger Reform Platten Imperial Eclipse The last one has some developer recipes on the box; "MQ formula" Metol Hydrokinone Sod. Sulphite Sod. Carbonate Potassium Bromide + water develop for 4 mins ! Anyone know of a current eqiv. ? Another one for "Pyro-Soda"