A VISUAL PROOF OF EXISTING VARIETIES FOR FIVE BOLÍVARES 1926 VENEZUELAN COINS.
Using Adobe PhotoShop (PS) we will compare 5 bolívares 1926 coins with the objective of proving the existence of several varieties not recognized by the grading companies (NGC; PCGS; ANACS; etc.)
We will explain the method used and then will proceed with our conclusions.
To compare coins we will first align them and then resize them. For alignment we will use the top horizontal line of the shield.
After alignment we will convert all coins to the same size. I will choose 1300 x 1300 pixeles. All coins will be cropped to a square with all borders touching the coin.
We will next make a “mask” of the stars and date by overlaying a transparent layer to the coin photo in PS. This “mask” will be used to compare different dates. The example below was made with a 3 pixel white brush, however, for different varieties we will use different colors. We generally use a 1 pixel brush for exactness.
“Masks” are quite easy to draw with a mouse using PS, however, If you have a pad and pencil it will be much easier. I use a WACOM ONE pad (about $60) and it works great.
In the following images we have created masks for 5 different varieties in 5 different colors.
1 - Orange. Corresponds to NGC 3645265-002 MS 62
2 - Red: Corresponds to NGC 4184415-002 AU 58
3 - Dark green: Corresponds to NGC 2847072-010 AU 55
4 - Light green: Corresponds to NGC 3722337-004 MS 61
5 - Light blue: Corresponds to NGC 2809065-062 AU 50
In the next image we will see all 5 “masks” superimposed.
We can clearly see that the dark green “mask” is narrower than the rest. We will call this dark green “mask” the “NARROW DATE” variety.
We remove the dark green “mask” and can now see that the red “mask” number “2” is higher than the rest. We will call the red “mask” a “HIGH 2” variety.
We then remove the red “mask” from the image and observe that the light green “mask” number “19” is wider than the others. We will call the light green “mask” the “19 WIDE” variety.
We will now remove the light green “mask” and are left with two colors. The light blue “mask” number “6” is higher and we will call this the “6 High” variety. We are left with the orange “mask” which we will call “6 LOW” variety.
Even though we have provided descriptive names to these 5 varieties we believe that the correct method to identify the different varieties is using “masks” which will visually give us a more exact detail of which variety we are looking at.
We have searched many 1926 5 bolívares coins but we can not guarantee that more varieties than those mentioned exist.
Fernando Aguerrevere Sánchez