Place your bets on the value

[aurelio]

(11-08-2018 07:18 AM)Massimo Gnerucci Wrote:  

(11-08-2018 02:18 AM)Paul Berger (Canada) Wrote:  There are actually 4 production versions of the 35
1. Red dot no model number on front bump on the 5 key
2. No red dot still no model number on front, early ones of this version still have the bump on the 5 key.
3. Now says HEWLETT PACKARD 35 on the front
4. Legends on top 4 rows moulded into keys rather that printed above them.

The four and two prototypes.

I have the 2nd , 3rd and fourth ones, not any red dot or prototype, unfortunately....
In the red dot showed in the picture, after the two prototypes, the ON-OFF switch is missing?
How many red dots have been throwed somewhere, disregarded and unknown?