The principle of R.G.R. Presses
A High output rotary press (R.G.R. press) is a 4-colour intaglio press which uses the same drying and tracking principle than TD6 presses. The R.G.R.-1 press (High output rotary press number one), called by its manufacturer “Roto Color Stamp”, was ordered in 1970 at the German firm Koenig and Bauer AG and was delivered in 1973 to the I.T.V.F. in Périgueux. For each cylinder turn, this press prints four double sheets of 100 stamps (that is to say 800 stamps (…)