Name/Title
[Conversion Slide Chart] Christensen, Hydraulics Calculator in Wallet, 1983, Faux-Leather Black Gold, Plastic YellowEntry/Object ID
2023.15.43Tags
1980s, Plastic, Metal, Paper, Yellow, Gold, Black, White, Slide, Slide Chart, Slide Converter, Slide Rule, Hydraulics, Technical Stationery, Calculations Table, Calculator, Booklet, Pamphlet, Christensen Drilling Products, Stationery, Drilling, Oil, Oil Field, Oil Industry, OilfieldDescription
A black document wallet containing a conversion slide chart and documents, branded to Christensen.
Document Wallet: A simple, black faux-leather, stitched document wallet, with two pockets and gold-foil print on the front. In the centre of the front surface is the Christensen horizontal diamond logo ("Less Cost Per Foot") and the text "A Norton company". The front pocket has a lower front and contained the booklet and pamphlet. The main pocket has a half-circle cutout in the centre and contains the slide chart.
Slide Chart: A rectangular (with rounded corners) plastic slide chart, with a clear slider. The text identifies it as a Hydraulics Calculator. The body of the chart is yellow, with black details and white bars. In each corner is a small silver-coloured eyelet.
Brand: Christensen Diamond Products
Producer: American Slide-Chart Corp. (Wheaton, Ill.)
Date: 1983
Booklet: The tall, narrow booklet, titled "PUMP PERFORMANCE CHARTS", contains various charts and calculations. Yellow cover with black print. Branded to Christensen.
Pamphlet: A tall, narrow bi-fold pamphlet, titled "INSTRUCTIONS FOR HYDRAULIC WORKSHEETS", branded to Christensen. Interior pages contain a sample filled worksheet with black and red print.Collection
Laurie Semotiuk CollectionCataloged By
Danielle P. LaneCategory
Slide Chart
Technical and Equipment Ruler, Technical Stationery and Tools, Technical Equipment
Acquisition
Accession
2023.15Source or Donor
Laurie SemotiukAcquisition Method
GiftDimensions
Dimension Description
All Items in Document WalletHeight
141 mmWidth
272 mmDepth
12 mmCreated By
Danielle P. LaneCreate Date
September 19, 2025Updated By
Danielle P. LaneUpdate Date
September 19, 2025