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  • l e knott apparatus company 1922 precision auxanometer vintage ad

Original vintage optical industry trade magazine ad for L.E. KNOTT APPARATUS COMPANY of Cambridge, MA.  Precision Method of Recording Plant Growth with No. 3563 Bovie Precision Auxanometer.  A device which is carried upward as the plant grows.  Also pictured is a Clock Recording Kymograph.  Old 1922 optical laboratory industry advertisement.

l e knott apparatus company 1922 precision auxanometer vintage ad

  • Product Code: s242
  • Length: 9 inches
  • Width: 6 inches
  • Pages: 1
  • Views: 22
  • Availability: In Stock
  • $20.00
  • $15.00

    ON SALE
    25% OFF

  • You save: $5.00 (25%)

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