Conservation of plans on tracing paper and onion paper

Tracing paper plan, before treatmentOnion skin paper drawing before treatment
Tracing paper plan after restoration Onion skin paper drawing after treatment

Houston: we have a problem... lines don't follow! Onion skin paper with fatty adhesive before treatment
(Houston): We restored it... and now we have only half a problem!  Onion skin paper with fatty adhesive after treatment (CLICK!)

If the tape is removed... so is the drawing!!!The tape is already removed...and now what?!


Damned "sellotapes"!removing tapes from a "bibliopath"Impregnated tracing paper
BluTack... miraculous adhesiveTracing paper, berliner styleThis document will self-destruct in 30 secs!

Customers and years