Likely enamel green.  Power Coat is more or less new since it is epoxy.

Is it dirt or rust ?   Iso should break down oils and wet soils.
Martin

James Cheshire wrote:
> Hello everyone,
>
> I just received some old index card file boxes. They are steel with a
> green powder coat finish, and I plan to use them for storing small
> shells. Because of their age (at least 50 years) they are a bit dirty.
> How should I go about cleaning them? I tried isopropyl on part of one
> box; it seemed to remove dirt without damaging the finish, but I
> thought I should ask about this before going ahead.
>
> Thanks,
> James
>
> ----------------------------------------------------------------------
> [log in to unmask] - a forum for informal discussions on molluscs
> To leave this list, click on the following web link:
> http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
> Type your email address and name in the appropriate box and
> click leave the list.
> ----------------------------------------------------------------------
>
>
>

--
Martin H. Eastburn
@ home at Lions' Lair with our computer lionslair at consolidated dot net
"Our Republic and the Press will Rise or Fall Together": Joseph Pulitzer
TSRA: Endowed; NRA LOH & Patron Member, Golden Eagle, Patriot's Medal.
NRA Second Amendment Task Force Charter Charter Founder
IHMSA and NRA Metallic Silhouette maker & member. http://lufkinced.com/

----------------------------------------------------------------------
[log in to unmask] - a forum for informal discussions on molluscs
To leave this list, click on the following web link:
http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
Type your email address and name in the appropriate box and
click leave the list.
----------------------------------------------------------------------