Matte-finished emblem of HP-15C

The collector's corner states that both highly reflective glossy silver and matte-finished silver logos have been used during the production of the voyager series. However, sample pictures are available on the net just for the metallic-reflective emblems, compare HP Forum: Voyager hp-15c logo gone missing..

I am wondering about the material of the logo of this 1988s device:

The rough darkish logo looks like it has been stamped into silver epoxy at fabrication. Is this a consequence of degradation or has HP just economized a high-quality finish during the late production years?


Are you sure this is a genuine emblem?

There is silver paint inside the "C" ark, that hints at a manual painting of the emblem...

Maybe created by rapid prototyping or a self-made negative-positive mold.


The original emblems where die cast zinc with chrome plate finish. The later parts, of which your photo is one, is molded black plastic which was then finished with silver paint. Your emblem shows the typical signs of wear to the edges of the painted areas from being inserted and removed from the slip case.


The material consists of silver flakes, indeed:

However, according to a resistance measurement it is not a matter of conductive silver epoxy. Some of the abraded material obviously adheres to the bottom of the plastic nuts.

Did the early emblems consist completely of zinc or did HP use the same molded black plastic piece as footing? Has the painted version been invented as it is after all more hard-wearing than the glossy logos? Unfortunately, no spare emblems reached the market within the scope of the reissued limited edition of 2011.

Possibly Related Threads…
Thread Author Replies Views Last Post
  Photo of my HP 15c | 15c LE DigiGal 2 1,410 10-12-2011, 12:34 PM
Last Post: DigiGal
  HP 15c LE vs HP-15C dimensions - BOTH ARE HUGE! Joerg Woerner 4 1,776 10-03-2011, 06:53 AM
Last Post: Jim Johnson
  HP 15C and 15C LE not the same dimensions? Derek 16 3,839 09-30-2011, 05:33 PM
Last Post: Derek
  Original 15C Keyboard Test Works With 15C LE!!! DigiGal 5 1,991 09-26-2011, 07:33 PM
Last Post: M. Joury
  How would a new HP 15c+ affect 15c market value? megarat 5 1,799 07-07-2010, 06:48 PM
Last Post: John Stark
  HP 35s modification: Matte LCD cover (and LCD re-alignment) Dallas Osborne 3 1,159 09-09-2009, 01:45 PM
Last Post: Thomas Radtke
  A coincidence, really, but I just finished restoring this HP 34C! Geoff Quickfall 11 2,447 05-27-2009, 07:07 AM
Last Post: Nigel J Dowrick
  Voyager keys -- glossy vs matte Euler 4 1,241 02-08-2007, 05:45 PM
Last Post: Paul Brogger
  TI-57 Emulator for HP-48S/SX/G/G+/GX, HP-49G and HP-49G+ is finished HrastProgrammer 9 2,475 01-17-2006, 12:57 AM
Last Post: HrastProgrammer
  Special Functions 2 Finished Eddie Shore 0 626 11-13-2005, 12:45 PM
Last Post: Eddie Shore

Forum Jump: