- Oct 11, 2000
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No, human. Why would you use pig semen?
In June 1915, Walter Kirke, deputy head of military intelligence at GHQ France, wrote in his diary that Mansfield Cumming, the first chief (or C) of the SIS was "making enquiries for invisible inks at the London University".
No, human. Why would you use pig semen?
Because it's easily obtainable *wink wink nudge nudge*
(edited for grossness)
However, the discovery also led to some further problems, with the agent who had identified the novel use having to be moved from his department after becoming the butt of jokes.
You have to lick the paper.They didn't say how to reveal the writing.
You have to lick the paper.
However, the discovery also led to some further problems, with the agent who had identified the novel use having to be moved from his department after becoming the butt of jokes.
In addition, at least one agent had to be reminded to use only fresh supplies of the 'ink' when correspondents began noticing an unusual smell.