I picked up these chips at different times. I was told they are all from the "Nacional Casino, Habana" (the words on the back of the chip at the upper right of the picture below; the back also has the serial number "5500" and the number "5"). Can anyone ID them? Can anyone show the logo(s) of the National Casino in Cuba? (I have no dupes other than one of the the crest and seal, in poor condition.)

Robert