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 can process normally if needed.
 
 
-
 ## Update 6-3-2021: Very Old Film
 
 Since this was first written, I've done a fair bit of testing using low
@@ -455,6 +454,35 @@
   better film speed than the Pyrocat-HD negs.
 
 
+## Update 8-29-2021: Very VERY Old Film
+
+I was interested in seeing how this worked with really old film
+and explore just how "old" was too old:
+
+
+* So, I shot some sheets of 2x3 Kodak Super-XX (expired 1/1961).
+  That's right, this film has been out of date for over *60 years*.  I
+  used both Pyrocat-HD 1.5:1:200 and D-23 1:1 to semistand process a
+  couple of these negatives.
+
+* The results?  Perfectly printable negatives.  The Pyrocat produced a
+  bit more negative fog, but noticably less visible grain.  The D-23
+  produced a "cleaner" negative, but had a lot more grain.  It's worth
+  noting that Super-XX was always a rather grainy film and was pretty
+  much replaced by Tri-X in short order, particularly for smaller
+  formats.  Both developers produced the full box ASA 200.
+
+* Unsurprisingly, there were non-development artifacts due to the
+  physical deterioration of the film.  The sheets were stuck together
+  a bit in the box and I did see some mottling on the non-emulsion
+  side of the film. This resulted in some spots in the final negative.
+
+* All-in-all this demonstrates several things.  First of all,
+  "reasonably" out-of-date film can pretty much be used as if it were
+  new.  Secondly, semistand processing may offer a path for rescuing
+  "found" old films.
+
+
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