Cut from a reel of new old stock schottky diodes from Hewlett Packard, marked QSMS-2834, I cross referenced these to HSMS-2812, singledevice, RF low flicker noise Schottky diodes in SOT-23 pack. You get strip of 25 pcs. Great for detectors, mixers, etc. 

 Please see my other items for more RF goodies.